Vulnerable themes

Avada and Avada Builder: vulnerabilities and patches since 2020

Avada, Builder and Core: flaws and patches

Avada has passed a million sales on ThemeForest, and every Avada site ships with two in-house plugins, Avada Builder and Avada Core. Patchstack lists 51 distinct vulnerabilities in this set from May 2020 to October 1, 2026, 22 of them in 2026 alone, including three that allowed code execution or file deletion without any account. Here are the most severe ones, what to know about the others, and why registering your license matters as much as updating.

Avada in brief

Avada is a commercial multipurpose theme published by ThemeFusion and sold on the ThemeForest marketplace (Envato). Its product page there showed more than one million sales in fall 2026 (ThemeForest's public counter; a sale does not necessarily correspond to an active site). The product consists of three building blocks:

  • the Avada theme itself;
  • Avada Builder (slug fusion-builder), the page, form and element builder;
  • Avada Core (slug fusion-core), which adds extra features to the theme.

As Wordfence pointed out in August 2026, Avada Builder is a plugin required by the theme, and is therefore present on every Avada site. A Builder vulnerability thus potentially affects the entire installed base.

As with any commercial theme, updates do not go through wordpress.org. According to Avada's documentation, registering the product with the ThemeForest purchase code is required to receive theme updates, and the plugins bundled with it, including Avada Builder, come through the same ThemeFusion channel. An unregistered site or a "nulled" copy therefore does not receive the fixes: that is exactly the profile of sites that remain vulnerable months after an announcement. Our article on nulled themes and plugins details the other risks of these copies.

Timeline of Avada vulnerabilities from 2020 to October 2026

Timeline: May 1, 2020, posts editable by a logged-in account, fixed in 6.2.3; April 19, 2022, unauthenticated SSRF in Avada Builder, fixed in 3.6.2 and Avada 7.6.2; August 10, 2023, eight vulnerabilities including two file uploads, fixed in 7.11.2 and Builder 3.11.2; February 28, 2024, file upload by a contributor, fixed in 7.11.5; February 12, 2025, shortcodes executed without an account, fixed in 7.11.14 and 3.11.14; May 13, 2026, unauthenticated SQL injection in the Builder, fixed in 3.15.2; May 21, 2026, unauthenticated code execution, fixed in 3.15.3; June 15, 2026, PHP object injection, fixed in 3.15.5; June 18, 2026, unauthenticated file deletion, fixed in 3.15.4; July 22, 2026, CSRF in Avada Core, fixed in 5.15.7; August 25, 2026, code execution with no account and no click, fixed in 7.16.1 and 3.16.1.
Avada's major vulnerabilities; events labeled "Builder" or "Core" concern the plugins bundled with the theme.

The table includes the critical vulnerabilities, the high-severity ones reachable without administrator rights and those that require no account. The date is the Patchstack publication date; the CVSS score is the one from the authority that assigned the CVE (CNA), otherwise NVD's. No recognized source documents exploitation of these vulnerabilities in the wild as of this article's date.

PublishedProductFixed inTypeCVSSCVEAccount required
April 19, 2022Builder (in Avada)3.6.2 (Avada 7.6.2) (affected: before 3.6.2, Avada up to 7.6.1)SSRF via forms9.8 (NVD)CVE-2022-1386None
October 20, 2022Theme7.8.2Cross-site request forgery (CSRF)8.8CVE-2022-41996None (an administrator must click)
August 10, 2023Theme7.11.2File upload (options import)8.5CVE-2023-39307Contributor
August 10, 2023Theme7.11.2Unchecked ZIP archive extraction9.1CVE-2023-39312Author
August 10, 2023Theme7.11.2SSRF7.7CVE-2023-39313Contributor
August 10, 2023Builder3.11.2SQL injection8.5CVE-2023-39309Logged-in account
August 10, 2023Builder3.11.2CSRF and reflected XSS7.1CVE-2023-39311, CVE-2023-39306None (the victim clicks)
February 28, 2024Theme7.11.5File upload (options import)8.8CVE-2024-1468Contributor
March 21, 2024Theme7.11.7Directory listing of files uploaded through forms5.3CVE-2024-2340None
February 12, 2025Theme and Builder7.11.14 and 3.11.14 (affected: up to 7.11.13 and 3.11.13)Shortcode execution7.3CVE-2024-13346, CVE-2024-13345None
May 13, 2026Builder3.15.2SQL injection (if WooCommerce has been deactivated)7.5CVE-2026-4798None
May 21, 2026Builder3.15.3PHP code execution (render_logics)9.8CVE-2026-6279None
June 15, 2026Builder3.15.4PHP object injection8.8CVE-2026-12256Contributor
June 15, 2026Builder3.15.5PHP object injection9.8CVE-2026-54194Contributor (according to the description)
June 16, 2026Builder3.15.5File deletion7.7CVE-2026-54193Contributor
June 18, 2026Builder3.15.4File deletion via a form9.1CVE-2026-8713None
June 18, 2026Builder3.15.5Privilege escalation8.8CVE-2026-56008Contributor
July 22, 2026Core5.15.7Cross-site request forgery (CSRF)9.6CVE-2026-65471None (an administrator must click)
August 26, 2026Theme and Builder7.16.1 and 3.16.1 (affected: up to 7.16 and 3.16)Chain of six flaws, file write and code execution9.8CVE-2026-18431None
Avada, Avada Builder and Avada Core: 21 notable vulnerabilities out of the 51 published by Patchstack from January 1, 2020 to October 1, 2026.

The other 30 vulnerabilities, almost all of medium severity, can be summed up as follows:

  • 2020: two vulnerabilities reported by Jérôme Bruandet (NinTechNet) and fixed in 6.2.3 on April 24, 2020: missing permission checks that let a logged-in user create, edit or delete posts, and a stored XSS (CVE-2020-36711).
  • 2021: none in Patchstack; WPScan lists two XSS fixed in 7.4.2 (bbPress searches and form entries).
  • 2023: two missing access controls, one in the theme, the other in the Builder, published with the August 10 batch.
  • 2024: an administrator-only SQL injection (7.2), form entries readable by a contributor, one SSRF and two contributor XSS, a CSRF and the reading of password-protected posts.
  • 2025: two missing access controls in the theme and four contributor XSS in the Builder.
  • 2026 up to October 1: twelve medium vulnerabilities, mostly in the Builder (XSS, missing access controls, file reading by a subscriber, limited execution of WordPress actions), two in Avada Core and one CSRF in the theme, plus a reflected XSS in the Builder rated 7.1.

The notable vulnerabilities explained

2022: forms turned into relays

Calum Elrick of Rootshell Security discovered that a parameter in Avada Builder forms was not validated: an anonymous visitor could make the server send HTTP requests to any address, including the hosting provider's local network or services that only listen on the machine, and read the response (CVE-2022-1386). ThemeFusion fixed it in Avada 7.6.2, released as a security update, along with Builder 3.6.2.

August 2023: eight vulnerabilities at once

Rafie Muhammad, a Patchstack researcher, reported a series of theme and Builder vulnerabilities to the vendor on July 6, 2023. The most severe concerned file uploads: the options import function let a contributor drop a PHP file (CVE-2023-39307), and ZIP archive extraction allowed the same for an author (CVE-2023-39312). On top of these came an SSRF, an SQL injection in the Builder, a CSRF and a reflected XSS. The fixed versions, Avada 7.11.2 and Builder 3.11.2, were released on July 11, five days after the report; Patchstack published the details on August 10. Six months later, Muhammad Zeeshan still found a file upload by a contributor in the same import function (CVE-2024-1468, fixed in 7.11.5).

February 2025: shortcodes within everyone's reach

Michael Mazzolini showed that an Avada action passed a received value without any check to the do_shortcode function. Any visitor could therefore run the site's shortcodes, with an impact that depends on the shortcodes available. The same flaw existed in the theme and in the Builder, hence two CVEs (CVE-2024-13346 and CVE-2024-13345), fixed in 7.11.14 and 3.11.14. Divi had a vulnerability of the same kind in 2026, described in our timeline of Divi vulnerabilities.

May and June 2026: the Builder open without an account

Spring 2026 concentrated the Builder's most severe vulnerabilities; for the first three, the fixed version was released before publication:

  • Code execution (CVE-2026-6279, 9.8): the render_logics attribute contained a JSON block one of whose values was passed directly to the PHP function call_user_func(), without an allowlist. The AJAX endpoint involved was open to logged-out visitors and protected only by a token visible in the code of public pages. Reported to ThemeFusion on April 15, 2026 by Tin Pham, Trong Pham and Hao Ngo, fixed in 3.15.3 (May 12), published on May 20.
  • File deletion (CVE-2026-8713, 9.1): on a site where an Avada form stores submissions, a visitor could slip a path such as ../../../wp-config.php into a submission, then trigger the automatic cleanup of personal data, which deleted the targeted file. Without wp-config.php, WordPress goes back to the installation screen, which opens the way to a takeover. Fixed in 3.15.4.
  • SQL injection (CVE-2026-4798, 7.5): exploitable without an account, but only if WooCommerce had been used and then deactivated. Reported by Rafie Muhammad through the Wordfence program, fixed in 3.15.2.
  • Patchstack's June batch: the same researcher, daroo, also reported two PHP object injections, a file deletion and a privilege escalation reachable by a contributor, fixed in 3.15.4 and 3.15.5. See our article on PHP object injection.

August 2026: a chain found by an AI

CVE-2026-18431 is the most publicized vulnerability in Avada's history. On July 30, 2026, Argus, an agent-based automated analysis system developed by Wordfence, identified and reproduced a chain of six weaknesses (authorization, input validation, trust boundary, file handling) between the theme and the Builder. Put end to end, they let an anonymous visitor write a PHP file to the server and execute it, without any user action. According to BleepingComputer, Argus also wrote the proof-of-concept exploit in about two hours. Wordfence sent the details on August 5, ThemeFusion acknowledged receipt on August 10 and released Avada 7.16.1 and Builder 3.16.1 just before Wordfence's announcement on August 25. Wordfence considered that its conditions (certain content created by an administrator) hardly reduced the number of targets and did not publish the technical details. Both components must be updated together.

Alert about Avada's critical August 2026 vulnerability and a call to update, by the Web | Coding | Security channel (in English).

On the Avada Core side, the CSRF CVE-2026-65471 (9.6 according to Patchstack) targeted a logged-in administrator lured into opening a booby-trapped link; it is fixed in 5.15.7.

Bar chart of Avada, Avada Builder and Avada Core vulnerabilities published per year according to Patchstack: 2 in 2020, medium; none in 2021; 2 in 2022 including 1 critical and 1 high; 8 in 2023 including 1 critical and 5 high; 9 in 2024 including 2 high; 8 in 2025 including 2 high; 22 in 2026 up to October 1 including 5 critical and 5 high; 51 in total.
Patchstack database (theme, Avada Builder and Avada Core), January 1, 2020 to October 1, 2026; a vulnerability listed for both the theme and the Builder is counted once.

What this history shows

  • The Builder concentrates the risk: of the 22 vulnerabilities in 2026, 17 concern Avada Builder, including three exploitable without an account with a score of 9 or more. It is the component to monitor first, like Elementor among free builders.
  • An acceleration in 2026: the Wordfence and Patchstack bug bounty programs, and now automated analysis, are finding more vulnerabilities, faster. The yearly count went from 8 or 9 to 22.
  • Fixes before the announcement: for the critical vulnerabilities of 2026, the fixed version came out before publication, sometimes several weeks before. An up-to-date site was protected; an unregistered site was not.
  • The same features keep coming back: options import (2023 then 2024), forms (2022, 2024, 2026) and shortcode execution.

WordPress core also releases regular fixes, as shown in our timeline of WordPress security releases.

How to protect your site

  • Update all three components: at least Avada 7.16.1 and Avada Builder 3.16.1, as well as Avada Core 5.15.7. Updating the theme without the Builder leaves the August 2026 chain open.
  • Register every site with a valid purchase code in the Avada dashboard, otherwise no update arrives. Ban nulled copies (see our explanation).
  • Automate what you can: our guide to automatic updates explains how to keep them under control, including for components that do not come from wordpress.org.
  • Clean up: delete unused Avada forms, turn off submission storage when you do not need it, and remove abandoned plugins and themes (see our article). Limit contributor and author accounts (see roles and least privilege).
  • Add a web application firewall to cover the gap between an announcement and your update (our WordPress firewall comparison), and watch the advisories that concern your themes (our method).

WP Masquerade Pro helps you not miss an advisory, including for a theme and plugins that wordpress.org does not track. Every day, it compares the installed versions with the public WPVulnerability.net database and sends a vulnerability alert by email with the severity and the fixed version; the member area shows pending updates and vulnerable sites, and the integrity check spots modified core files, which is useful after a file-write vulnerability. WP Masquerade alerts: it does not update Avada, does not register your license and is not a firewall. For a firewall, see our comparison of the best WordPress security plugins.

Key takeaways

  • Patchstack lists 51 distinct vulnerabilities in Avada, Avada Builder and Avada Core from January 1, 2020 to October 1, 2026, 22 of them in 2026.
  • Avada Builder, required by the theme, carries most of the severe vulnerabilities: unauthenticated code execution and file deletion in 2026.
  • CVE-2026-18431 (August 2026, 9.8) allowed a site takeover with no account and no click: Avada 7.16.1 and Builder 3.16.1 at a minimum.
  • No purchase code registration, no updates: check every site, and stay away from nulled copies.

Sources

  • ThemeForest: Avada, product page and sales counter (external link, opens in a new tab)
  • Avada: How To Register Avada (documentation) (external link, opens in a new tab)
  • CVE: CVE-2022-1386, Fusion Builder before 3.6.2 (May 16, 2022) (external link, opens in a new tab)
  • CVE: CVE-2026-18431, Avada 7.16 and Fusion Builder 3.16 (August 26, 2026) (external link, opens in a new tab)

Other sources consulted: further CVE records, security research publications, trade press articles, WPScan and Patchstack databases.

Update, October 28, 2026: on October 9, 2026, Wordfence disclosed CVE-2026-97670 (critical, 9.1) in Avada Builder up to 3.16.1: through an Avada form, an unauthenticated visitor could trigger WordPress actions. The fix is in Avada 7.16.2 and Avada Builder 3.16.2, released on September 30. Full details: Critical Avada Builder vulnerability: update to 3.16.2 now.

Vulnerable themes7 min

Critical Avada Builder vulnerability: update to 3.16.2 now

On October 9, 2026, Wordfence disclosed a critical vulnerability in Avada Builder: through a form, an unauthenticated visitor can make WordPress run actions, up to emptying…

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